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The DS1339 contains a 5.25-inch diameter speaker mounted on axis. The compact enclosure includes a convoluted, flame retardant, acoustical insert to eliminate standing waves and metallic resonance. Dynasound's DS1339 sound masking speaker is designed for
Features- Clean, streamlined appearance for use in open structure facilities and in ceiling plenums
- Internal 70.7 volt transformer with rotary volume control
- Four-point suspension for easy installation and fast leveling
- ETL listed to conform to UL 1480A and UL